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Practical 7 – The Respiratory Tract-Medicine, Study notes of Medicine

This document is a set of detailed histology notes on the respiratory tract, likely from a medical or biomedical science course. It covers the structure and function of the respiratory epithelium, nasal cavity, nasopharynx, larynx, trachea, bronchi, bronchioles, and alveoli. The notes explain the roles of various cell types, including goblet cells, ciliated cells, Clara cells, and type I and II pneumocytes, as well as the blood-air barrier and alveolar macrophages. The document also discusses the pleura and its layers. The tone is precise and academic, aimed at providing a thorough understanding of the histological and physiological aspects of the respiratory system.

Typology: Study notes

2024/2025

Available from 03/12/2025

charles-khama
charles-khama 🇮🇹

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3/12/25, 5:19 PM about:blank Practical 7 — The Respiratory Tract Tract Functions of respiratory tract include: ~ Filtration . Humidification Respiratory Epithelium . Speech . Protection against infection Nava Warming Olfuction and taste Gas exchange and transport Lines the tubular portion of the respiratory system: . Nose paeNe 7] Bronchioles ‘Al the cells have contact with the basement membrane There are interspersed goblet cells There are also non-ciliated basal cells that represent a stem cell population, responsible for the renewal of the epithelium Neuro-endocrine cells are present which monitor the inspired air for allergens The underlying connective tissue contains a rich plexus of thin-walled blood vessels that warm the incoming air Additional sero-mucous glands secrete mucous to cover the surface ‘The mucus prevents dehydration of the epithelium and traps particulate matter Cilia beat the particulates towards the throat to be swallowed down 17